Machine for cutting corrugated paper-board.



1). CHURCH. MAGHINE FOR-CUTTING CORRUGATED PAPER BOARD.

7 APPLICATION FILED NOV. 30, 1908. 1,055,610. Patented Mar. 11, 1913.

Mme 147901 D671, 21 (29 671102124 32 hi6 whom/1mg 'being'ia 'gradual andprogressrvelone jex-f 3 first punctured or perorated-ata point m'adejbypuncturingiwi'll graduallsr.

' ters. lMloreover, it will be clea'r that' a cut:

I and cleanly, is obtained by the toothed or cutting edges 21 having'the-desired'angle,

6o changed with increase or decrease of the differentconditions, andthismay be done down on thetops puncturing or perforat'ing'portions"thereof;

. end of "thecutting edge of the corrugated board operates to puncture-orperforate'the arched} :tain aspects] of invention -i-t-z-isfessentiar Y axes or median-.line's 'offlsaid. V-shaped -teetn girl to,pierce the materialto-besevered.

Zlength of stroke, i e., "-as'trokei-fsuflicient such material: board.be;

[points of slight resistance and the-openings.

creased in the' same -manneriby :the sa teeth, "a' ofresistance'beiiigsther, by' opposedfby the corrugated board to, the}cutting action, instead of l the maximum .re-f I sistance which isopposedwhen-asubstaii tiall'y; straight --ed'gedi cutter; isi broughtof-the arches o the gations, 2 v, The cutting edges; of. the mov ble.utters-'- 17.. are designated-generally by; 21,-- me: the

here shownas -saw. -teeth, are, designatedlb 22. It will benotioed thatthe, 'size; jof

teeth '22 decreases from the -begim ing=.to lie- 'rtn movable .s nought'jQn.

-ter.- Sl qh a cutter wh cettf ij h lactionfboth :i'n puncturin and." m;severing tend ng; r om: the; -beginningtojthe' findlfoia eachcutting-edge, because, of the inclination .ual decrease in the sizeotthe teeth; 1n.-c'er that-iboth'side edgesi oi-eachVshapedc'utting-tooth be' sinnlarlyl sharpened, and the should beapproximately;at'rightangles to. thestationary cutter as the respectvaieeth of. the movable cutter contact .wit irand be;

By means of cutters; of; the type vdescribed, corrugated boardiand otherfibrous material is cut cleanlyland'withthe least resistance to theaction oifthe movable cutter of such'type permitslof theuse of a cutterblade of indefinite length having little or no angle to the opposing.fixed cutter and, consequently requiringa ."only: am nimum "merely toprovide'for pro'pe'r clearance of the work. The reasonfior;thisiSQthat'the necessary or desired angle ofshear, which is a considerableone .to cutf-fibrous'stock easily serrated formation of the cutting:edgeof the cutter blade which provldes the. series of with respect totheopposing or fixedcutter. Furthermore with this type-of cutter thestroke. of .the' machine need never be length of slot or cut whichiha'sto be produced. at one stroke of theccutter, because the angle of the'cutting-edgesill to the opposing cutter 18 may bevaried to sluths'fial'fiori'ga if et i li iimat riii' merel b in; ei" .ofsa-ided' esor' f 'l lifiishfii t st'roie of the mfbhine "permittedI-bynseofr'fth-edescribed type of ccutter also makesit possible'toausefa' simple light,:co'mpa'ct 'jand high;speed"machine. to

d fh r-wr h tofor o e. by

cutter edge and-(2 1.1- re m f0 preventingij thel material being carried'1the 'ascent -ofjthefcross-head 5 Gages eatlng thematerial' ii1-;itsjproper'position to" iii-to be cut or slottedthifiesired: dis

tancefiroin bne ed e, and-"the usual} strip pers. 2iareprovidje atopposite sides; of the 'sflotsgl8sforl' clearing .the cutters by -l1olding the material .do vn. ;whe1i the cross-head. alsi, cends;aiBotliftheigages-23- and 'thestrippers 24 are -Idj1 S t3ble,..fas" arethe movable trstllg, thes'gagesbeing adjustable cross-z wise-pf thehead-J5 while the strippersland itheifixedfand inova'blecutters are adjustable' a' direction lengthwise of the cross-head. While I- =hav e -1shbwn and described tone :de'si'rable embodiment of: my .-invention, *1

to the particular-form? thereof which I have disclosed; for it isobvious that the same may beivariously-modified without departingfromthe principle-of my invention,

and as. all such obvious changes and modifi-' cations areiwithin' thepurview ofmy in-' vent1on,'I do ;not limit, myself to anything shown anddescribede'x'cept so far as I may be limited by the vention belongs.

What I-clairnisz; I I I v 1. In; a machine for cuttingcorrugated paperboardand the like, the combination of 'substantiallyjhorizontalbedhavinga prior art to whichthe in "straight edgedstationary knifeonwhich the paperboard is laid, aknife'movable down ward to;- cotiperatewith said stationary knife, and having a saw toothedcutting edge formedof aplurality of V-shaped' -teeth each'of which is similarlysharpenedalong' both side edges," and power operated means toso operatesaid movable knife that its sawtoothed. edge, as it contacts with thepaper board, isarranged at an angle to the latter and to' the stationaryknife so that one end portion of the toothed edge begins to out beforethe other end portion, whereby the paper board or. the like issimultaneously punctured and. sheared at successive points along thecutting line. i

'- 2, In a cnttinglmachl'ne, the comblnation of two cooperating cutters,one of which is movable in a path substantially at right angles to theother, one of said cutters bemuch larger andl heavier-machine haying fa"pe t esse ut or; slotted and.

usher-teams for the purpose qofjlo- .l

edges, and the teeth .ofsai ingprovided with a "saw-toothed cutting.

' edge arranged atan. angle to the cutting edge of the other said edgeformed of V-' shaped teeth similarly .sha'r ened on both toothed edgegradually decreasing in ize from end to end, as described. I e

, In a cutting machine, a. cutter having- .a straight cuttmgedge, and asecond cutter" movable atright angles to said first named c1itter andprovided withasaw-toot-hed cuttii 1g edge' arranged, as a whole, at anin-' velmation to the straight cutting edge of the first named cutter,thesaw-teethlwhich be-l gin the out being of 'la'rger.'size .than thoselat the'o'ppositejend of the toothed edge. I

"4. 111.2) mgicliine .for cutting corrugated paperboard and the like,the combination of-a substantiallyhorizontal bed having-astationaryknife on which the paper board .is laid a'knife movable-downward tocoing a cutting edge formed of a plurality of operate with saidtationary knife and hav- V-shaped teeth each of Wl1lOl1 iS similarlyshar ened alon -both side ed es and means to so operate-said movableknife that' its aforesaid cutting edge,-as it contacts with the paperboard, is arranged at an angle to the latter and to the stationaryknife, whereby the paper" board or'the like is simultaneously puncturedand sheared at suc cessive points along the cutting line.

'5. In a machine; for-cutting corrugated, paper board and the like, thecombination of a substantially fixed bed havinga stationarytknife onwhich the paper board is laid, a knife movable downward to 006peratewithsaid stationary knife and'haviug acutting edge formed of a' pluralityof-V- shaped teeth the side edges of which are similarly sharpened,-and' means fto; so no erate said movab1e.. knife that fits aforesaid jcutting edge, as it -contae ts" w,i th the aper board, is arranged at-anangle toith'e atter and to the stationary knife so that one endapproximatelyat right anglesto the stationary knife asthe respectiveteeth contact with and material. v w

6. In a machine for cutting corrugatedpalperbba'id and the like, thecombination 'of a substantially hdri'zontal bed ll'M-illg a stationaryknife on which the pape'ris' laid,

pierce the paperboard -or other portion of said cutting edge begins tocut a. before the other end portion, the' median lines or axes of saidteeth being directed a vertically. movable cross head above said,

bed, and a knife secured to said cros's. head 1 and movabledownward-therewith to co operate with said ystationary' knife,- saidrected at an angle to the cutting edge of the- {movable ,knife'havingits cutting edge di'- stationary knife land the cuttingedge 'of saidmovable knife being formed by m1 ralityof V -'shaped teeth similarlysharp-5 cued alongboth" side edges and progress'ively increasing-in sizetoward that end of the movable knife which first contactswith th'e paperboarder other material,.tl1e

median lines of said teeth bei-u'g approxi-' mately at right angles tothe stationary knife.

' Signed-"at Rochester, in the'cou'n'ty of- Monroe'and State of NewYork, .this 16th,

